A GENERAL TREATMENT OF NMR IMAGING WITH CHEMICAL-SHIFTS AND MOTION
A GENERAL TREATMENT OF NMR IMAGING WITH CHEMICAL-SHIFTS AND MOTION
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DOI：
10.1002/mrm.1910050105
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发表时间：
1987-07-01
影响因子：
3.3
通讯作者：
PESHOCK, RM
中科院分区：
文献类型：
--
作者：
TWIEG, DB;KATZ, J;PESHOCK, RM
核磁共振成像（MRI）和光谱成像（MRSI），其中考虑到化学位移，运动，场的不均匀性，和弛豫时间的影响，一般治疗。一个图形表示的基础上的k轨迹形式主义，其中包括这些影响，然后开发MRI和MRSI采集过程。这些考虑应该是有用的研究和设计的流动敏感的MRI和MRSI方法和准确预测的运动伪影在传统的MRI和MRSI技术。最后，我们提出的例子说明应用的一般理论，具体的MRSI和流动成像方法。
A general treatment of nuclear magnetic resonance imaging (MRI) and spectroscopic imaging (MRSI), which takes into account the effects of chemical shift, motion, field inhomogeneity, and relaxation times, is presented. A graphical representation based on the k trajectory formalism which includes these effects is then developed for MRI and MRSI acquisition processes. These considerations should be useful in the study and design of flow-sensitive MRI and MRSI methods and the accurate prediction of motion artifacts in conventional MRI and MRSI techniques. We conclude by presenting examples illustrating applications of the general theory to specific MRSI and flow imaging methods.